121314341215321 has 2 divisors, whose sum is σ = 121314341215322. Its totient is φ = 121314341215320.

The previous prime is 121314341215289. The next prime is 121314341215421. The reversal of 121314341215321 is 123512143413121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87469929631296 + 33844411584025 = 9352536^2 + 5817595^2 .

It is a cyclic number.

It is not a de Polignac number, because 121314341215321 - 2⁵ = 121314341215289 is a prime.

It is not a weakly prime, because it can be changed into another prime (121314341215421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60657170607660 + 60657170607661.

It is an arithmetic number, because the mean of its divisors is an integer number (60657170607661).

Almost surely, 2^{121314341215321} is an apocalyptic number.

It is an amenable number.

121314341215321 is a deficient number, since it is larger than the sum of its proper divisors (1).

121314341215321 is an equidigital number, since it uses as much as digits as its factorization.

121314341215321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 34.

Adding to 121314341215321 its reverse (123512143413121), we get a palindrome (244826484628442).

The spelling of 121314341215321 in words is "one hundred twenty-one trillion, three hundred fourteen billion, three hundred forty-one million, two hundred fifteen thousand, three hundred twenty-one".